User Manual

Group28
EngineControlModule(ECM)DiagnosticTrouble
Codes(DTCs)
FMI5
•Currentbelow
normaloropen
circuit
•Openinthe5volt
supplyline
•Shorttogroundin
meteringline
•Openinthe
meteringline
•MILilluminated
•Enginederate
•FaultyEGRdifferentialpressure
sensorconnector
•FaultyEGRdifferentialpressure
sensorharness
•FaultyEGRdifferentialpressure
sensor
FMI7
•Mechanicalsystem
notrespondingor
outofadjustment
•EGRdifferential
pressuresensor
isreadeitherto
highortoolow.
(Abnormalvalue).
•MILilluminated
•Enginederate
•FaultyEGRdifferentialpressure
sensorconnector
•FaultyEGRdifferentialpressure
sensorharness
•FaultyEGRdifferentialpressure
sensor
•EGRvalve
•EGRvalveleak
•Cloggedventuri
ECMSPN412,EngineExhaustGasRecirculationTemperature–MID128
PID412
Typeof
fault:
FMIDescription:
FaultCondition:
Possible
Symptoms:
PossibleCause:
FMI0
•Datavalidbutabove
normaloperational
range-Mostsevere
level
•EngineExhaust
GasRecirculation
Temperatureis
aboverange
•Enginederate•Extremedrivingconditions
•EGRcoolerfailure
FMI2
•Dataerratic,
intermittentor
incorrect
•EGRtemperate
signal,believed
tobenotvalid
(plausibilityfault)
•MILilluminated
•Enginederate
•Faultysensor
FMI4
•Voltagebelow
normal,orshorted
tolowsource
•Shorttoground
onthemetering
sideoftheEGR
Sensorcircuit
•MILilluminated
•Enginepower
willbederated
accordingtothe
errortorquemap
•FaultyEGRT emperatureSensor
connector
•FaultyEGRT emperatureSensor
harness
•FaultyEGRTemperatureSensor
FMI5
•Currentbelow
normaloropen
circuit
•Shorttobattery
inthemetering
sideoftheEGR
Sensorcircuit
•Openinthe
meteringsideof
theEGRSensor
circuit
•Opencircuitin
thegroundlineof
theEGRSensor
circuit
•MILilluminated
•Enginederate
•FaultyEGRT emperatureSensor
connector
•FaultyEGRT emperatureSensor
harness
•FaultyEGRTemperatureSensor
30